Chromatography system for automatically separating different compounds in a sample
US6652746B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2002 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | Mar 26, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N30/8627
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A chromatography system including a chromatography column connected to receive a sample and separate different compounds in the sample, a flow-through detector that outputs a signal indicating the presence of compounds in the sample leaving the column, a fraction collector that directs fractions of the sample from the column to separate fraction wells, and an electronic controller that receives inputs from the detector and controls the fraction collector. The electronic controller monitors the signal from the detector over time and initiates a cut from one well to another at the fraction collector when the signal over time experiences a shoulder where the slope of the signal over time does not change in sign but does change by more than a predetermined amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.